Schematic Diagram - Kenwood TK-8302 Service Manual

A
TK-8302/8302H
TX-RX UNIT (X57-7680-XX)
1
1
PLCK
PLDT
PLLE
1
PLPS
UL
2
Q729
PLL IC
CLOCK AMP
1.47V
R938
47k
1
VCoNT
2
GND
19.2MHz
3
0.73V
Q500
2SC5108(Y)F
4
5
W : 4.96V
N : 0V
CF500
C511
0.1u
D500
MC2858
CF501
C512
6
0.1u
W : 0V
N : 4.96V
NARROW
7
42
X57-768 1/6
B

SCHEMATIC DIAGRAM

R7 1k
R6 1k
R5 1k
R973
R972 10
1k
3.3C
1.59V
R955 C17
56k 0.1u
0.65V
3.21V
Q729
KTC4075E(Y,GR)
X1
3.28V
L77-3055-05
R10
4
VCC
10
L2
R73
4.7u
0
3
oUTPUT
TCXO
RX 2nd LOCAL
DOUBLER AMP
8.54V
R501 C506 C509
330k 10p 0.01u
R522
0
R : 8.24V
R528 C541 R530
0 0.01u 390
Q502
2SC5108(Y)F
R : 0.73V
IF AMP
5C
WIDE
4.92V
C513
0.1u
D501
1
MC2858
D500,501
2
W/N CF
C521
SWITCH
0.1u
3
C514 4
0.1u
C522 0.1u
5
C523 0.1u
6
7
8
C520
270p
R511 C524
390k 1000p
C
1
IC1
MB15E03SL-E1
PLL
IC
C98 C933
R81
470p 470p
0
D1
C23 C939
PLL UNLOCK
0.1u 0.1u
DETECTION
C24 C940
10u 10u
R15
47k
1.90V
ASSIST FILTER
7.54V
CN1
IC2
LV
BD7542FVM
1 8
CN3 VCC
7
2
3 6
4 5
VEE
C32 R20
470p 1k
R : 8.65V
MCF
XF500
38.85MHz
RX 1st
MIXER
R534 C550
390 0.01u
9R
FM IC
IC500
TA31136FNG
16
oSCIN MIXIN
15
oSCoUT GND
Q501
14
MIXoUT N-REC RT1P441U
13
VCC N-DET
12
IFIN RSSI
C527
11
DEC IFoUT
68p
10
FILoUT QUAD
9
Q507
FILIN AFoUT
RT1N441U
CN500
CN502
RSSI
D
R25 R30 R35 R21
0 0 1k 1.8k
PLL
C33
L705
FIN AMP
2p
15n
4.19V
C936 C36
L39
R27
Q3
2p 1000p
15n
0
2SC5108(Y)F
9CL
Q11,12
ASSIST FILTER
CONTROL SWITCH
Q11
SSM3J05FU-F
Q12
R65 R893 2SK1830F
10k 0
9R
CN503
R : 246V
CN505
R550 C565
27 470p
R : 2.15V
Q504
3SK318
R : 0.90V
SQUELCH
INPUT SWITCH
Q511
R544
R531 R533
KTC4075E(Y,GR)
82k
0 0
CN501
SQIN
Q510
RT1N441U
SQUELCH
Q501,507
INPUT CONTROL
DISCRIMINATOR SWITCH
CONTROL
SWITCH
WIDE 2
RSSI
NARROW
E
1
L4
9CL
ASTC
2
DISC
FREQ